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Commit 7a59b363 authored by Kyle Yan's avatar Kyle Yan
Browse files

drivers: edac: Initialize control and counter values on all CPUs 



All CPUs need their per cpu control and counter registers for ECC set
in order for interrupts to trigger on each CPU.

Change-Id: Ie7581032d0d494ded460309c352799a0ebc9df78
Signed-off-by: default avatarKyle Yan <kyan@codeaurora.org>
parent fd8f40e6

drivers/edac/kryo3xx_arm64_edac.c

+20 −5
Original line number Diff line number Diff line 
/* Copyright (c) 2016, The Linux Foundation. All rights reserved.

/* Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -60,6 +60,13 @@ static inline void set_errxctlr_el1(void) 
	asm volatile("msr s3_0_c5_c4_1, %0" : : "r" (val));

}



static inline void set_errxmisc_overflow(void)

{

	u64 val = 0x7F7F00000000;



	asm volatile("msr s3_0_c5_c5_0, %0" : : "r" (val));

}



static inline void write_errselr_el1(u64 val)

{

	asm volatile("msr s3_0_c5_c3_1, %0" : : "r" (val));
@@ -319,9 +326,7 @@ void kryo3xx_poll_cache_errors(struct edac_device_ctl_info *edev_ctl) 


static irqreturn_t kryo3xx_l1_l2_handler(int irq, void *drvdata)

{

	struct erp_drvdata *drv = *(struct erp_drvdata **)(drvdata);



	kryo3xx_check_l1_l2_ecc(drv->edev_ctl);

	kryo3xx_check_l1_l2_ecc(panic_handler_drvdata->edev_ctl);

	return IRQ_HANDLED;

}
@@ -334,14 +339,24 @@ static irqreturn_t kryo3xx_l3_scu_handler(int irq, void *drvdata) 
	return IRQ_HANDLED;

}



static void initialize_registers(void *info)

{

	set_errxctlr_el1();

	set_errxmisc_overflow();

}



static int kryo3xx_cpu_erp_probe(struct platform_device *pdev)

{

	struct device *dev = &pdev->dev;

	struct erp_drvdata *drv;

	int rc = 0;

	int fail = 0;

	int cpu;



	for_each_possible_cpu(cpu)

		smp_call_function_single(cpu, initialize_registers, NULL, 1);





	set_errxctlr_el1();

	drv = devm_kzalloc(dev, sizeof(*drv), GFP_KERNEL);



	if (!drv)